Sorry for the late reply... On Sun 17 May 2015, Marco Righi wrote: > > I have the board ODROID-XU3 described at the end of this mail. > > I have installed four 2TB disks, two USB3 disks (called main_a and > main_b) and two USB2 disks (called backup_a and backup_b). The USB2 > disks are connected to a powered usb2 hub and the USB3 disks are > connected to a powered usb3 hub. > > Every night I performed a rsync from main_a to backup_a and from main_b > to backup_b. > > It is some days that I can not perform a backup from main_a to backup_a.
This is generally an error due to rsync running out of memory. I don't know how large the filesystems you are copying, but you may need to split the transfer up by running it multiple times, for each subdirectory. Paul
